Update Dockerfile

Dockerfile

@@ -29,6 +29,6 @@ RUN echo "nobody:x:65534:65534:Nobody:/:" > /etc_passwd
 FROM quay.io/cdis/golang-build-base:master
 COPY --from=build-deps /etc_passwd /etc/passwd
 COPY --from=build-deps /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
-COPY --from=build-deps /go/src/github.com/uc-cdis/arborist/ /arborist
+COPY --from=build-deps /go/src/github.com/uc-cdis/arborist/ /go/src/github.com/uc-cdis/arborist/
 USER nobody
 CMD ["/arborist/bin/arborist"]